$width: 500px;

.my-ul {
  width: $width;
  border: 1px solid #000;
  margin: 0;
  list-style: none;

  li {
    height: 40px;
    line-height: 40;

    &.active {
      color: #f00;
      border: 5px solid #FF0000;
    }
  }
}
